package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioProperties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {
    @Autowired
    private MinioProperties minioProperties;
    @Autowired
    private MinioClient minioClient;

    @Override
    public String upload(MultipartFile file) {
        try {
            boolean bucketExists = minioClient.bucketExists(BucketExistsArgs.builder().bucket(minioProperties.getBucketName()).build());
            if (!bucketExists) {
                // 创建存储桶
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(minioProperties.getBucketName()).build());
                // 设置存储桶策略
                String policy = """
                        {
                                      "Statement" : [ {
                                        "Action" : "s3:GetObject",
                                        "Effect" : "Allow",
                                        "Principal" : "*",
                                        "Resource" : "arn:aws:s3:::%s/*"
                                      } ],
                                      "Version" : "2012-10-17"
                                    }
                        """.formatted(minioProperties.getBucketName());
                minioClient.setBucketPolicy(SetBucketPolicyArgs.builder().bucket(minioProperties.getBucketName()).config(policy).build());
                // 创建存储桶成功
            }
            // 上传文件
            // 文件名  时间 + UUID + 原始文件名
            String fileName = new SimpleDateFormat("yyyyMMdd").format(new Date())
                    + "/" + UUID.randomUUID()
                    + "-" + file.getOriginalFilename();
            minioClient.putObject(PutObjectArgs.builder()
                    .bucket(minioProperties.getBucketName())
                    .object(fileName)
                    .stream(file.getInputStream(), file.getSize(), -1)
                    .contentType(file.getContentType())
                    .build());
            return String.join("/", minioProperties.getEndpoint(), minioProperties.getBucketName(), fileName);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}
